Direc­tory systems/unix/pkfind

pk­find – A 'find' com­mand which un­der­stands pk files

The TDS stan­dard spec­i­fies that pk and
gf files con­tain \spe­cial strings to iden­tify the con­tents of
the files. Pk­find is a vari­ant of the GNU find util­ity
mod­i­fied to un­der­stand those spe­cials, and to act on them
in some cases. For ex­am­ple, it can be used to delete all pk
files cre­ated by gs­ftopk from a sub­di­rec­tory tree.